diff --git a/application/Espo/Tools/Kanban/Kanban.php b/application/Espo/Tools/Kanban/Kanban.php
index 8aa9a17afd..ba6fc44dc3 100644
--- a/application/Espo/Tools/Kanban/Kanban.php
+++ b/application/Espo/Tools/Kanban/Kanban.php
@@ -49,20 +49,17 @@ class Kanban
 
     private const MAX_GROUP_LENGTH = 100;
 
-    protected $entityType;
+    protected ?string $entityType = null;
 
-    protected $countDisabled = false;
+    protected bool $countDisabled = false;
 
-    protected $orderDisabled = false;
+    protected bool $orderDisabled = false;
 
-    /**
-     * @var ?SearchParams
-     */
-    protected $searchParams = null;
+    protected ?SearchParams $searchParams = null;
 
-    protected $userId = null;
+    protected ?string $userId = null;
 
-    protected $maxOrderNumber = self::DEFAULT_MAX_ORDER_NUMBER;
+    protected int $maxOrderNumber = self::DEFAULT_MAX_ORDER_NUMBER;
 
     private $metadata;
 
@@ -301,6 +298,10 @@ class Kanban
         return $statusField;
     }
 
+    /**
+     * @return string[]
+     * @throws Error
+     */
     protected function getStatusList(): array
     {
         $statusField = $this->getStatusField();
@@ -314,6 +315,9 @@ class Kanban
         return $statusList;
     }
 
+    /**
+     * @return string[]
+     */
     protected function getStatusIgnoreList(): array
     {
         return $this->metadata->get(['scopes', $this->entityType, 'kanbanStatusIgnoreList'], []);
diff --git a/application/Espo/Tools/Kanban/KanbanService.php b/application/Espo/Tools/Kanban/KanbanService.php
index 90ce20ec55..2a30f08a2c 100644
--- a/application/Espo/Tools/Kanban/KanbanService.php
+++ b/application/Espo/Tools/Kanban/KanbanService.php
@@ -93,6 +93,10 @@ class KanbanService
             ->getResult();
     }
 
+    /**
+     * @param string[] $ids
+     * @throws ForbiddenSilent
+     */
     public function order(string $entityType, string $group, array $ids): void
     {
         $this->processAccessCheck($entityType);
@@ -116,7 +120,7 @@ class KanbanService
         return $this->injectableFactory->create(Kanban::class);
     }
 
-    private function processAccessCheck($entityType): void
+    private function processAccessCheck(string $entityType): void
     {
         if (!$this->metadata->get(['scopes', $entityType, 'object'])) {
             throw new ForbiddenSilent("Non-object entities are not supported.");
diff --git a/application/Espo/Tools/Kanban/OrdererProcessor.php b/application/Espo/Tools/Kanban/OrdererProcessor.php
index e17cb6883e..1cbc1e3e9a 100644
--- a/application/Espo/Tools/Kanban/OrdererProcessor.php
+++ b/application/Espo/Tools/Kanban/OrdererProcessor.php
@@ -43,17 +43,17 @@ class OrdererProcessor
 
     private const DEFAULT_MAX_NUMBER = 50;
 
-    private $entityType;
+    private ?string $entityType = null;
 
-    private $group;
+    private ?string $group = null;
 
-    private $userId = null;
+    private ?string $userId = null;
 
-    private $maxNumber = self::DEFAULT_MAX_NUMBER;
+    private int $maxNumber = self::DEFAULT_MAX_NUMBER;
 
-    private $entityManager;
+    private EntityManager $entityManager;
 
-    private $metadata;
+    private Metadata $metadata;
 
     public function __construct(EntityManager $entityManager, Metadata $metadata)
     {
@@ -95,6 +95,9 @@ class OrdererProcessor
         return $this;
     }
 
+    /**
+     * @param string[] $ids
+     */
     public function order(array $ids): void
     {
         $this->validate();
diff --git a/application/Espo/Tools/Kanban/Result.php b/application/Espo/Tools/Kanban/Result.php
index fa5867e21b..6631804a40 100644
--- a/application/Espo/Tools/Kanban/Result.php
+++ b/application/Espo/Tools/Kanban/Result.php
@@ -29,27 +29,34 @@
 
 namespace Espo\Tools\Kanban;
 
-use Espo\{
-    ORM\EntityCollection,
-};
+use Espo\ORM\EntityCollection;
 
-use StdClass;
+use stdClass;
 
 class Result
 {
-    private $collection;
+    /**
+     * @var EntityCollection<\Espo\ORM\Entity>
+     */
+    private EntityCollection $collection;
 
-    private $total;
+    private int $total;
 
-    private $data;
+    private stdClass $data;
 
-    public function __construct(EntityCollection $collection, int $total, StdClass $data)
+    /**
+     * @param EntityCollection<\Espo\ORM\Entity> $collection
+     */
+    public function __construct(EntityCollection $collection, int $total, stdClass $data)
     {
         $this->collection = $collection;
         $this->total = $total;
         $this->data = $data;
     }
 
+    /**
+     * @return EntityCollection<\Espo\ORM\Entity>
+     */
     public function getCollection(): EntityCollection
     {
         return $this->collection;
@@ -60,7 +67,7 @@ class Result
         return $this->total;
     }
 
-    public function getData(): StdClass
+    public function getData(): stdClass
     {
         return $this->data;
     }